Question 1
What hanging mass will stretch a 1.5-m-long, 0.64mm - diametersteel wire by 1.0mm?
Question 2
The density of aluminum is 2700 kg/m^3. How many atoms are in a1.20cm x 1.20cm x 1.20cm cube of aluminum?
Question 3
Smoking tobacco is bad for your circulatory health. In an attemptto maintain the blood's capacity to deliver oxygen, the bodyincreases its red blood cell production, and this increases theviscosity of the blood. In addition, nicotine from tobacco causesarteries to constrict. For a nonsmoker, with blood viscosity of2.5x10^-3 Pa*s, normal blood flow requires a pressure difference of8.0 mm of Hg between the two ends of an artery. If this person wereto smoke regularly, his blood viscosity would increase to 2.7x10^-3 Pa*s, and the arterial diameter would constrict to 90% ofits normal value. What pressure difference would be needed tomaintain the same blood flow?
Question 4
A stiff, 15 cm-long tube with an inner diameter of 3.0 mm isattached to a small hole in the side of a tall beaker. The tubesticks out horizontally. The beaker is filled with 20 degreesCelsius water to a level 50 cm above the hole, and it iscontinually topped off to it maintain that level.What is the volumeflow rate through the tube?
Question 1
What hanging mass will stretch a 1.5-m-long, 0.64mm - diametersteel wire by 1.0mm?
Question 2
The density of aluminum is 2700 kg/m^3. How many atoms are in a1.20cm x 1.20cm x 1.20cm cube of aluminum?
Question 3
Smoking tobacco is bad for your circulatory health. In an attemptto maintain the blood's capacity to deliver oxygen, the bodyincreases its red blood cell production, and this increases theviscosity of the blood. In addition, nicotine from tobacco causesarteries to constrict. For a nonsmoker, with blood viscosity of2.5x10^-3 Pa*s, normal blood flow requires a pressure difference of8.0 mm of Hg between the two ends of an artery. If this person wereto smoke regularly, his blood viscosity would increase to 2.7x10^-3 Pa*s, and the arterial diameter would constrict to 90% ofits normal value. What pressure difference would be needed tomaintain the same blood flow?
Question 4
A stiff, 15 cm-long tube with an inner diameter of 3.0 mm isattached to a small hole in the side of a tall beaker. The tubesticks out horizontally. The beaker is filled with 20 degreesCelsius water to a level 50 cm above the hole, and it iscontinually topped off to it maintain that level.What is the volumeflow rate through the tube?
